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HelicopterHIROBOHirobo SDX › Hirobo SDX
06-03-2010 11:46 AM  7 years agoPost 1
Helicrazy4

rrVeteran

West Virginia

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Just order the kit looking forward to building the kit ,It is my first nitro heli ,Thanks to Bob And Andrew Did the bubby box at a funfly and got me hook lol. fell in love with it,

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06-03-2010 07:09 PM  7 years agoPost 2
Robert Merlino

rrNovice

Tewksbury, MA

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Hi Denny,
congrats on your purchase. Time to clear the bench and get your tools and Locktite ready. You will enjoy the build, guaranteed.

Bob

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06-03-2010 10:59 PM  7 years agoPost 3
rexxigpilot

rrProfessor

Florida

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Read some of the build posts for the SDX to avoid a few build issues.

The following are a couple of things I remember from my build. You may need servo spacers depending of which servos you use to avoid collisions with other servo arms/wheels. Also, file flat spots on the flybar where the set screws land before you tighten them down on the flybar or you will create burrs. You can't get the flybar back out when it needs replacing or simple adjusting if you don't do this.

Also, read the post by Ben Minor on setting the head ball link positions to adjust the flight characteristics. The SDX can be set from tame to wild depending on where the ball links on the B/H mixer are installed.

Good luck with the build. It is a great bird!

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06-03-2010 11:29 PM  7 years agoPost 4
Trevor G

rrApprentice

Brisbane, Australia

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Here`s a tip that Jeremy F mentioned here in another thread.
I had been chasing a main rotor vibe for ages with my new SDX.
After messing around, replacing parts it all came down to centering the ball on the feathering spindle and loctiting the grub screw BEFORE installing the assembly in the yoke.
Assembling as per manual and tightening the grub screw last can allow the spindle to be almost 0.5mm of center and the head wobbles like crazy at a certain RPM and feeds the vibe directly to the tail which becomes a blur.
I only discovered this thanks to Jeremy posting on here and after I replaced a few parts and re balanced blades ect.
Loosen the grub screw, push the ball in one direction and re-tighten it.Take a measurement and then do it again, pushing the ball in the opposite direction and you will see how far out it can be. The new, tight damper rubbers don`t always let the spindle find it`s own center when you follow the manual assembly order.

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06-03-2010 11:44 PM  7 years agoPost 5
Helicrazy4

rrVeteran

West Virginia

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Thanks for the heads up on the build it will be a big help with the input you guys have giving me and if there is anything else that would be helpful with the build, would you keep me posted,thanks

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06-04-2010 12:47 AM  7 years agoPost 6
davidevo50

rrApprentice

Montreal, PQ, Canada

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One other thing as well, it's better if you tap the holes on the plastic swash plate before installing the ball ends, some guys had cracking issues, and don't over tighten in the plastic, Hirobo has the best plastic compound in the industry but it's still only plastic...

Have fun!

LIVE IN THE NOW!

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06-04-2010 05:53 AM  7 years agoPost 7
Andy.Kim

rrVeteran

Seattle, WA

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Congratulations. Now make your mark here

https://rc.runryder.com/helicopter/t507567p11/

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HelicopterHIROBOHirobo SDX › Hirobo SDX
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